From Longman Dictionary of Contemporary Englishkindnesskind‧ness /ˈkaɪndnəs/ ●●○ noun1KIND[uncountable]kindbehaviour towards someoneI can’t thank you enough for your kindness.RegisterIn everyday English, when you are thanking people for helping you, the normal phrase to use is Thanks for (all) your help. The phrase Thank you for your kindness sounds very polite and slightly old-fashioned.2[countable]KIND a kind actiondo somebody a kindnessIt would be doing him a kindness to tell him the truth. → kill somebody with kindnessat kill1(16)
Examples from the Corpus
kindness• What this child needs is a little love and kindness.• I shall never forget her kindness to me.• She was touched by this simpleact of kindness.• We were overwhelmed by the kindness of the people there.